85755131 has 8 divisors (see below), whose sum is σ = 106915584. Its totient is φ = 66822120.

The previous prime is 85755121. The next prime is 85755133. The reversal of 85755131 is 13155758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85755131 is a prime.

It is a super-2 number, since 2×85755131² = 14707884985654322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85755091 and 85755100.

It is not an unprimeable number, because it can be changed into a prime (85755133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556775 + ... + 556928.

It is an arithmetic number, because the mean of its divisors is an integer number (13364448).

Almost surely, 2^85755131 is an apocalyptic number.

85755131 is a deficient number, since it is larger than the sum of its proper divisors (21160453).

85755131 is a wasteful number, since it uses less digits than its factorization.

85755131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113721.

The product of its digits is 21000, while the sum is 35.

The square root of 85755131 is about 9260.4066325405. The cubic root of 85755131 is about 440.9811627366.

The spelling of 85755131 in words is "eighty-five million, seven hundred fifty-five thousand, one hundred thirty-one".